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Finding the Fourth Proportional to 35,430.66, 48,894.66 and 19,515.60

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Solution

The fourth proportional to 35,430.66, 48,894.66 and 19,515.60 is: 26,931.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,430.66 : 48,894.66 = 19,515.60 : x
  2. Step 2: Convert to fraction form
    35,430.66/48,894.66 = 19,515.60/x
  3. Step 3: Cross multiply
    35,430.66x = 48,894.66 × 19,515.60
  4. Step 4: Simplify right side
    35,430.66x = 954,208,626.70
  5. Step 5: Solve for x
    x = 954,208,626.70/35,430.66
  6. Step 6: Final answer
    x = 26,931.72

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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.