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Finding the Fourth Proportional to 40,445.40, 56,740.20 and 40,445.40

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Solution

The fourth proportional to 40,445.40, 56,740.20 and 40,445.40 is: 56,740.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,445.40 : 56,740.20 = 40,445.40 : x
  2. Step 2: Convert to fraction form
    40,445.40/56,740.20 = 40,445.40/x
  3. Step 3: Cross multiply
    40,445.40x = 56,740.20 × 40,445.40
  4. Step 4: Simplify right side
    40,445.40x = 2,294,880,085.08
  5. Step 5: Solve for x
    x = 2,294,880,085.08/40,445.40
  6. Step 6: Final answer
    x = 56,740.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.