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Finding the Fourth Proportional to 53,492.60, 80,411.70 and 49,345.40

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Solution

The fourth proportional to 53,492.60, 80,411.70 and 49,345.40 is: 74,177.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,492.60 : 80,411.70 = 49,345.40 : x
  2. Step 2: Convert to fraction form
    53,492.60/80,411.70 = 49,345.40/x
  3. Step 3: Cross multiply
    53,492.60x = 80,411.70 × 49,345.40
  4. Step 4: Simplify right side
    53,492.60x = 3,967,947,501.18
  5. Step 5: Solve for x
    x = 3,967,947,501.18/53,492.60
  6. Step 6: Final answer
    x = 74,177.50

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1.5x scale

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.