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Finding the Fourth Proportional to 15,470.61, 23,199.98 and 5,607.51

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Solution

The fourth proportional to 15,470.61, 23,199.98 and 5,607.51 is: 8,409.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.61 : 23,199.98 = 5,607.51 : x
  2. Step 2: Convert to fraction form
    15,470.61/23,199.98 = 5,607.51/x
  3. Step 3: Cross multiply
    15,470.61x = 23,199.98 × 5,607.51
  4. Step 4: Simplify right side
    15,470.61x = 130,094,091.81
  5. Step 5: Solve for x
    x = 130,094,091.81/15,470.61
  6. Step 6: Final answer
    x = 8,409.11

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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.