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Finding the Fourth Proportional to 46,830, 64,626.48 and 28,937.28

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Solution

The fourth proportional to 46,830, 64,626.48 and 28,937.28 is: 39,934.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,830 : 64,626.48 = 28,937.28 : x
  2. Step 2: Convert to fraction form
    46,830/64,626.48 = 28,937.28/x
  3. Step 3: Cross multiply
    46,830x = 64,626.48 × 28,937.28
  4. Step 4: Simplify right side
    46,830x = 1,870,114,547.17
  5. Step 5: Solve for x
    x = 1,870,114,547.17/46,830
  6. Step 6: Final answer
    x = 39,934.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.