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Finding the Fourth Proportional to 19,657.89, 29,264.49 and 19,541.16

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Solution

The fourth proportional to 19,657.89, 29,264.49 and 19,541.16 is: 29,090.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,657.89 : 29,264.49 = 19,541.16 : x
  2. Step 2: Convert to fraction form
    19,657.89/29,264.49 = 19,541.16/x
  3. Step 3: Cross multiply
    19,657.89x = 29,264.49 × 19,541.16
  4. Step 4: Simplify right side
    19,657.89x = 571,862,081.41
  5. Step 5: Solve for x
    x = 571,862,081.41/19,657.89
  6. Step 6: Final answer
    x = 29,090.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.