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Finding the Fourth Proportional to 18,754,001.84, 28,130,844.80 and 14,658,767.68

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Solution

The fourth proportional to 18,754,001.84, 28,130,844.80 and 14,658,767.68 is: 21,988,028.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,754,001.84 : 28,130,844.80 = 14,658,767.68 : x
  2. Step 2: Convert to fraction form
    18,754,001.84/28,130,844.80 = 14,658,767.68/x
  3. Step 3: Cross multiply
    18,754,001.84x = 28,130,844.80 × 14,658,767.68
  4. Step 4: Simplify right side
    18,754,001.84x = 412,363,518,565,336.06
  5. Step 5: Solve for x
    x = 412,363,518,565,336.06/18,754,001.84
  6. Step 6: Final answer
    x = 21,988,028.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.