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Finding the Fourth Proportional to 48,308.40, 65,423.70 and 48,308.40

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Solution

The fourth proportional to 48,308.40, 65,423.70 and 48,308.40 is: 65,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,308.40 : 65,423.70 = 48,308.40 : x
  2. Step 2: Convert to fraction form
    48,308.40/65,423.70 = 48,308.40/x
  3. Step 3: Cross multiply
    48,308.40x = 65,423.70 × 48,308.40
  4. Step 4: Simplify right side
    48,308.40x = 3,160,514,269.08
  5. Step 5: Solve for x
    x = 3,160,514,269.08/48,308.40
  6. Step 6: Final answer
    x = 65,423.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.