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Finding the Fourth Proportional to 15,459,636.80, 23,182,456.80 and 5,871,828.80

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Solution

The fourth proportional to 15,459,636.80, 23,182,456.80 and 5,871,828.80 is: 8,805,085.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,459,636.80 : 23,182,456.80 = 5,871,828.80 : x
  2. Step 2: Convert to fraction form
    15,459,636.80/23,182,456.80 = 5,871,828.80/x
  3. Step 3: Cross multiply
    15,459,636.80x = 23,182,456.80 × 5,871,828.80
  4. Step 4: Simplify right side
    15,459,636.80x = 136,123,417,492,995.84
  5. Step 5: Solve for x
    x = 136,123,417,492,995.84/15,459,636.80
  6. Step 6: Final answer
    x = 8,805,085.09

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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.