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Finding the Fourth Proportional to 57,225.40, 85,838.10 and 48,585.40

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Solution

The fourth proportional to 57,225.40, 85,838.10 and 48,585.40 is: 72,878.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,225.40 : 85,838.10 = 48,585.40 : x
  2. Step 2: Convert to fraction form
    57,225.40/85,838.10 = 48,585.40/x
  3. Step 3: Cross multiply
    57,225.40x = 85,838.10 × 48,585.40
  4. Step 4: Simplify right side
    57,225.40x = 4,170,478,423.74
  5. Step 5: Solve for x
    x = 4,170,478,423.74/57,225.40
  6. Step 6: Final answer
    x = 72,878.10

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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.